A155672 - OEIS

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A155672 as a simple table

n	a(n)
0	1
1	3
2	41
3	603
4	8081
5	102003
6	1240121
7	14704203
8	171312161
9	1970527203
10	22450640201
11	253930611003
12	2855998840241
13	31980846315603
14	356873041128281
15	3971357037321003
16	44096709674720321
17	488769846799627203

[1,3,41,603,8081,102003,1240121,14704203, 171312161,1970527203,22450640201,253930611003, 2855998840241,31980846315603,356873041128281, 3971357037321003,44096709674720321, 488769846799627203]